| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-09-01 | 小雨 | 13°/8° | 4.8 mm |
| 2026-09-02 | 阴 | 20°/6° | 0.0 mm |
| 2026-09-03 | 阴 | 24°/8° | 0.0 mm |
| 2026-09-04 | 小毛毛雨 | 27°/10° | 0.5 mm |
| 2026-09-05 | 阵雨 | 23°/10° | 6.7 mm |
| 2026-09-06 | 毛毛雨 | 13°/5° | 1.4 mm |
| 2026-09-07 | 阴 | 14°/2° | 0.0 mm |
| 2026-09-08 | 阴 | 15°/1° | 0.0 mm |
| 2026-09-09 | 阴 | 17°/2° | 0.0 mm |
| 2026-09-10 | 毛毛雨 | 17°/4° | 2.2 mm |
| 2026-09-11 | 小毛毛雨 | 18°/4° | 0.4 mm |
| 2026-09-12 | 雷阵雨 | 13°/4° | 17.4 mm |
| 2026-09-13 | 小雨 | 14°/3° | 3.7 mm |
| 2026-09-14 | 小毛毛雨 | 16°/1° | 0.2 mm |
| 2026-09-15 | 阴 | 14°/2° | 0.0 mm |
| 2026-09-16 | 阴 | 20°/2° | 0.0 mm |
| 2026-09-17 | 阴 | 23°/9° | 0.0 mm |
| 2026-09-18 | 毛毛雨 | 21°/9° | 3.2 mm |
| 2026-09-19 | 阵雨 | 10°/-1° | 7.0 mm |
| 2026-09-20 | 阴 | 12°/-2° | 0.0 mm |
| 2026-09-21 | 阴 | 12°/-1° | 0.0 mm |
| 2026-09-22 | 阴 | 14°/0° | 0.0 mm |
| 2026-09-23 | 阴 | 13°/0° | 0.0 mm |
| 2026-09-24 | 晴间多云 | 14°/0° | 0.0 mm |
| 2026-09-25 | 阴 | 15°/2° | 0.0 mm |
| 2026-09-26 | 小毛毛雨 | 14°/2° | 0.4 mm |
| 2026-09-27 | 小毛毛雨 | 13°/2° | 0.6 mm |
| 2026-09-28 | 小毛毛雨 | 12°/1° | 0.2 mm |
| 2026-09-29 | 小雨 | 7°/-2° | 4.2 mm |
| 2026-09-30 | 小雪 | 4°/-1° | 1.7 mm |
2026年09月根河市共记录 30 天，平均最高 15℃、最低 3℃，降水日 16 天。